Machine for working hides and leather.



H. ALEPS.

MACHINE FOB WORKING HIDES AND LEATHER. APPLICATION FILED JULY 28,1911.

1,107,640, Patented Aug. 18, 1914 5 SHEETS-11331 1.

IHE NORRIS PLIEA's C04 Puum llrno wablllNumN, n l

H. ALEFS.

MACHINE FOR WORKING HIDES AND LEATHER. APPLICATION FILED JULY 26, 1011.

1,107,640, Patented Aug. 18, 1914.

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H. ALBFS.

MACHINE FOR WORKING HIDES AND LEATHER APPLICATION FILED JULY 28, 1011.

1,107,640. Patented A1 1g.18, 1914.

5 SHEETS-SHBET 3.

"(E NORRIS PETER; C0..Pno10 LIIHO warsnlrvarom u L H. ALBFS.

MACHINE FOR WORKING HIDES AND LEATHER. APPLICATION FILED JULY 28, 1011.

1,107,640. Patented Aug. 18, 191i 5 SHEETS-$11231 4.

rut; AORRIS I-FIERS 60.. PIIOTO-LITIIO., WASHINGTON. D, C.

H. ALEFS.

MACHINE FOR WORKING HIDES AND LEATHER.

A PPLIOATION FILED JULY 28,1911.

jQ/rreidef HENRY ALEFS,

OF MILWAUKEE, WISCONSIN.

MACHINE FOR WORKING HIDES AND LEATHER.

Specification of Letters Patent.

Application filed July 28, 1911.

Patented Aug. 18, 1914.

Serial No. 641,010.

To all whom it may concern Be it knownthat I, HENRY Annrs, a citizen ofthe United States, residing in Milwaukee, in the county of Milwaukee andState of Wisconsin, have invented new and useful Improvements inMachines for lVorking Hides and Leather, of which the following is adescription, reference being had to the accompanying drawings, Vv'lllCllare a part of this specification.

This invention relates to machines for hide and leather working, andpz'irticularly to that class of machines wherein the work is thrown upona concave support and there clamped while a rotating cylinder havingcutting blades or other working parts is swung over the surface thereof,and an object of the invention is to improve upon details of mechanicalconstruction of the machine covered by my United States Letters PatentNo. 972,792, dated October 18, 1910, for hide and leather workingmachines, to reduce the power necessary to operate the machine byproviding the swinging cylinder frame with a counterweight and operatingit by means of a segmental gear thereon meshing with stationary wormdriven pinions.

Another object of the invention is to dispense with the chain drive forthe working cylinder of my former construction and substitute a shaftand gearing drive connection therefor.

Another object of the invention is to improve on the construction of theyielding mounting for the stiff back plate for the rubber bolster.

Another object of the invention is to improve upon details of generalconstruction of the machine.

With the above and other objects in view the invention consists in themachine for hide and leather working therein claimed, its parts andcombinations of parts and all equivalents thereof.

Referring to the accompanying drawings in which like characters ofreference indicate the same parts in the different views: Figure 1 is anend elevation of a machine for hide and leather working constructed inaccordance with this invention; F 2 is a plan view thereof; Fig. 3 is asectional view on the plane of line 33 of Fig. 2; Fig. 4 is a sectionalview on the plane of line -l-1 of Fig. 2, showing the swinging frame ina travelingposition and the clamping frame.

lowered; and, Fig. 5 is a rear view of the, j machine.

In these drawings the machine is shown to be constructed on a framewhich comprises end castings 10 connected at their upper corners byangle iron beams 11 and 12".! respectively and at their lower rearcorners by an angle iron connecting bar 13 to give rigidity to thefrai'nc, there being a central end meshing with a gear wheel 20 on ashaft 21 which is 'journaled in bearings 22 on the end frames 10.

The shaft 21 has sleeves 23 mounted thereon and each sleeve 23 is formedon a segmental gear 2-il having rigidly fastened to it an arm 25 whichis thus pivotally mounted on the shaft 21 and is capable of a swing-i 2ing movement. At their outer ends the arms 25 form bearings 26 for apair of working cylinders 27 which are caused to constantly g5 rotate inthe direction of the arrows in Fig. l-. Pinions 28 at one end of thecylindcrs27". T mesh with a gear wheel 29 mounted on a stud of one arm25. The gear wheel 29 carries a beveled pinion 30 meshing with a beveledpinion 31 and a shaft 32 which is jo'urnaled in bearings 33 on the arm251? and has a beveled pinion 3st at its other end meshing with abeveled pinion 35 on shaft The frame formed by the arms 25 and theircylinders is caused to swing on shaft 21. by the segmental gears 24:meshing with? pinions 2-36 on a shaft 37 which is journaled across theframe in brackets 38 and this shaft 37 may be driven in any desirablemanner under the control of the operator. It has been found desirable,however, to drive the shaft 87 by worm gearing so that the swingingframe may be stopped in any position and held there without the neces- 5sity for a brake. For this purpose a worm wheel 39 is keyed on shaft 37and is contained within an inclosing casirlg 40 in which is journalcd ashaft 41 carrying a worm 4C2 in mesh with the Worm wheel 39 and alsocarrying a beveled pinion 43 meshing with a pair of beveled gears 44 andi 45 which are loosely mounted on a shaft 46 j ournaled in bearings 47on beam 12-. Each of the beveled gears 4.4 and L5 is provided with aclutch 48 operated by a lever 49 for connecting it with shaft l6. As theshaft &6 is provided with a belt pulley 50 by which it is driven fromany suitable source of power the engagement of one clutch 48 serves tolock the gear as to the shaft and cause theswinging frame to move in onedirection, while the operation of the other clutch serves to lock thegear l5 with the shaft to move the swinging frame in the oppositedirection. The two clutch levers 49 are connected by a link 51 and arealso con nected by a link 52 with a crank arm on a shaft 5a journaledacross the end of the machine and having a crank arm 55 on its front endconnected by a link 56 with a hand lever57. By this means the clutchesmay be thrown by the operator at the front of the machine but preferablymeans is provided for automatically restoring the lever to its central.position for disconnecting both clutches whenever the swinging framereaches the end of its movements in either direction.

The weight of the swinging frame and the working cylinders iscounterbalanced by suspending a weight 58 from a point on the segmentalgears 24 which is approximately opposite the cylinders. This weight issuspended by means of chains 59 passing over guide rollers 60 on theframe and connecting with eyes 61 on the segmental gears 24.. The weight58 is preferably formed of a single piece of metal with recessesprovided therein to receive the legs of the frame, the recess for thebracket post 14 being bridged by a plate 62 to form a guide for theweight and the ends of the weight having projections 63 which in thelowermost position of the swinging frame nearly engage the horizontalportions of the end frame so that in case the chains or otherconnections should break, the weight would not have far to fall.

A rod 64: is horizontally mounted in in clined slots of the end frameand is engaged by set screws 65 for holding it in its adj ustments. Asimilar rod 64. is correspondingly mounted and carries crank arms 65.Angular levers 66 are fulcrumed on the rods 6st and the crank arms 65the longer ends of the upper levers extending downwardly and the longerends of the lower levers extending upwardly. The shorter ends of thelevers 66 are pivotally connected to ears on the underside of a bolstersupport which comprises a concaved sheet metal plate 67 held stiff andrigid. as to shape by means of angle rods 68 on the back thereof. Thisstiff and rigid back plate for the bolster is yieldingly mounted bymeans of the levers 66, said levers being spring pressed at their longerends by having coil springs 69 confined between adjusting screws 70 onsaid ends of the levers and bearing blocks 71 pivotally mounted on thebolster back plate. These longer ends of the levers 66 are guidedbetween perforated parallel guide of a bolster 75, usually a heavy sheetof rubher, which hangs loosely on the back plate 67, being entirely freeat its lower edge.

A clampingframe is pivotally mounted to cooperate with the breastbeam74C in holding the work during the action of the cylinders thereon, andsuch clamping frame preferably comprises a clamping strip 76 connectedbetween a pair of arms 77 which. are pivotally mounted on the brackets38 so that said clamping frame may swing from the position shown in Fig.3 to the position shown in Fig. 4i. iii-shaped hooks 78 are pivotallymounted on the arms 77 of the clamping frame in position for engagementwith rollers 79 on the main frame and pins 80 on the arms 25 of theswinging frame are adapted to engage and disengage these hooks forlocking and unlocking the clamping frame. On the downward movement ofthe swinging frame the clamping frame moves with it, bearing thereon bymeans of the locking hooks 78 engaging the pins 80.

When the clamping strip 76 engages the Ina-j teria-l which has beenthrown over the breast beam 7 1 and rests upon the bolster 75, itsdownward. movement is arrested, but the pins 80 in traveling along therounded lower portion of the locking hooks 78 force the locking hooksbeneath the rollers 79, such rounded surface of the hooks engaged by thepins acting as cams for this purpose and the hooks serving as wedges orcams in their bearing beneath the rollers 7 9 for firmly drawing theclamping frame down upon the material to securely h old it againstslippage. A water spray pipe 81 may be provided to spray water on thework and a flexible apron 82 may be attached to the clamping strip 76 toprevent the water being sprayed on the operator.

The back plate for the bolster, which is stiff and unyielding in itself,is yieldably mounted by means of the spring pressed levers so that itmay give as the cylinders travel over it and assure the material beingheld against the cylinders with sufficient pressure to cause thecylinders to perform the work required of them without going so deeplyinto the hide as to injure it during the unhairing or unfieshingoperation.

The swinging cylinder frame being counterbalanced enables the machine tobe operated with a motor of much less horsepower than before, for thecylinders as well as the frame are very heavy in order to properlyperform their work. The worm drive for swinging the frame permits of thecylinders being stopped at any point of their travel without the use ofa brake or other means for holding them and the possibility of accidentto the operator by the falling of the swinging frame in event of thecounterweight connections becoming broken.

W hat I claim as new and desire to secure by Letters Patent is: y

1. A machine for hide and leather working, comprising a swinging frame,a cylinder carried by the swinging frame, means for supporting work inthe path of the cylinder, sleeves on the swinging frame forming pivotalconnections therefor, a suitably driven shaft passing through thesleeves and having a driving connection with the cylinder, a segmentalgear secured to the swing ing frame and. extending beyond the shaft, asuitably driven pinion meshing with the segmental gear for swinging theframe, and a weight suspended from the segmental gear beyond the shaftfor counterbalancing the swinging frame.

2. A machine for hide and leather working comprising a swinging frame, acylinder carried. by the swinging frame, means for supporting work inthe path ofthe cylinder, sleeves on the swinging frame, a suitablydriven shaft passing through the sleeves, means for swinging the frame.a beveled gear on the shaft, a shaft carried by the swinging frame, abeveled pinion thereon meshing with the beveled gear, a pinion on thecylinder, and a gear wheel. carried by the swinging frame and meshingwith the pinion on the cylinder and geared to the shaft which is carriedby the swinging frame.

3. A machine for hide and leather working, comprising a swinging frame,a cylinder carried by the swinging frame, means for supporting work inthe path of the cylinder, a shaft supporting the swinging frame, a shaftcarried by the swinging frame, a pinion on the cylinder and a gear wheelcarried by the swinging frame and meshing with the pinion on thecylinder and geared to the shaft which is carried by the swinging frame,two gears mounted on the shaft supporting the swinging frame, oneloosely mounted thereon. and power driven means connected with each ofsaid two gears, one for swinging the frame and the other for driving thecylinder carried by the frame.

4. In a hide working machine the combi' nation with a main f 'ame, aswinging frame mounted therein, a hide working cylinder mounted in theswinging frame parallel with the axis on which it swings, means forswinging said frame and means for rotating said cylinder, of a concavesupport approximately concentric with the axis about which the cylinderswings, levers fulcrumed to the main frame and pivoted to said support,and springs acting on said levers and tending to move the support towardthe path of said cylinder.

5. In a hide working machine the combination with a main frame, aswinging frame mounted therein, a hide working cylinder mounted in theswinging frame parallel with the axis on which it swings, means forswinging said frame and means for rotating said cylinder, of a concavesupport approximately concentric with the axis, levers pivotallyconnecting said support with the main frame, springs acting on saidlevers and tending to move said support toward the path of saidcylinder, and means for separately adjusting the tension of the saidsprings.

(i. In a hide working machine the combination with a main frame, aswinging frame mounted therein, a hide working cylinder mounted in theswinging frame parallel with the axis on which it swings, means forswinging said frame and means for rotating said cylinder, of a concavesupport approximately concentric with the axis, levers pivotallyconnecting said support with the main frame, springs acting on saidlevers and tending to move said support toward the path of saidcylinder, and stops limiting the movement of said support toward saidsupport toward said path.

7. In a hide working machine, the combination with a main frame, aswinging frame mounted therein, a hide working cylinder mounted in saidswinging f'ame parallel with the axis on which it swings, means forswinging said fran'ie and means for rotating said cylinder, of a concavesupport approximately concentric with said axis, levers pivotallyconnecting said support with the main frame, springs acting on saidlevers and tending to move said support toward the path of the cylinder,and adjustable stops for limiting the movement of said support towardsaid path.

8. In a hide working machine the combination. with a main frame, aswinging frame mounted therein and a rotary hide working cylimlcrcarried by said swinging frame parallel with the axis on which itswings, of a concave support approximately concentric with said axis,two pairs of levers pivoted to said support, one pair being pivoted tothe main frame and the other pair connected therewith by rocker arms,and springs interposed between said support and levers and tending tomove the support toward the path of the cylinder.

9. In a hide working machine the combination with a main frame, aswinging frame mounted therein and a rotary hide working cylindercarried by said swinging frame parallel with the axis on which itswings, of

a concave support approximately concentric with said axis, leverspivotally connected with said support and with the main frame, adjustingscrews threaded in said. levers and provided with spring seats, opposingspring seats pivoted to said support and springs interposed between saidseats.

10. In a hide working machine the combination with a main frame, aswinging frame mounted therein and a rotary hide working cylindercarried by said swinging frame parallel with the axis on which itswings, of a concave support approximately concentric with said axis,levers pivotally connected with said support and with the main frame,springs interposed between said support and levers and tending to movethe support toward the path of the cylinder, arms fastened about saidsupport transversely to said levers and each formed with a series ofholes, and stop pins fitted in said holes for limiting the. movement ofsaid levers and determining the normal position of said support.

11. In a hide working machine the combination with a main frame, aswinging frame mounted therein, a rotary cylinder carried by saidswinging frame parallel with the axis on which it swings, and a worksupport in the path of said cylinder, of gears on said swinging frameconcentric with the axis on which it swings, a shaft arranged parallelwith said axis and provided with a Worm gear and with pinions meshingwith the gears on said swinging frame, a worm meshing with said wormgear, and means for driving said worm in opposite direc-- tions.

12. In a hide working machine, the combination with a main frame, aswinging frame mounted therein, 'a rotary cylinder carried by saidswinging frame parallel with the; axis on which ltSWlIlgS and a worksupport in the path of said cylinder, of gearsmounted on said swingingframe concentric with its axis of oscillation, a shaft parallel withsaid axis and provided with a worm gear and with pinions meshing withthe gears on said swinging frame, a shaft arranged transversely to saidaxis and provided with a bevel gear and with a worm meshing with saidworm gear, a driving shaft parallel with said axis and provided withbevel gears loosely mounted thereon and meshing with the gear on saidworm shaft, and clutches for locking either of the driving gears on thedriving shaft, and thereby reversing the; movement of the swingingcylinder frame.

In testimonv whereof, I affix my signature, in presence of twowitnesses.

HENRY ALEFS.

Witnesses: i

R. S. C. CALDWELL, KATHERINE HOLT.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

Washington, D. C. T

